Photocatalytic hydrogenation of furan to tetrahydrofuran in alcoholic suspensions of metal-loaded titanium(iv) oxide without addition of hydrogen gas.
Photocatalytic hydrogenation of furan to tetrahydrofuran in alcoholic suspensions of metal-loaded titanium(iv) oxide without addition of hydrogen gas.
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DOI：
10.1039/c7cp02891a
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Kousuke Nakanishi;A. Tanaka;K. Hashimoto;H. Kominami
中科院分区：
文献类型：
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作者：
Kousuke Nakanishi;A. Tanaka;K. Hashimoto;H. Kominami
金属共催化剂的使用拓宽了不使用二氢（H2）气体光催化还原的应用。我们研究了呋喃（一种具有代表性的杂环化合物，也是一种来源于生物质的化合物）在无h2条件下，在负载金属的氧化钛（TiO2）的酒精悬浮液中进行的光催化加氢反应。我们发现，当钯作为助催化剂时，在360 nm处，呋喃几乎被定量地加氢为四氢呋喃，表观量子效率高达37%。考察了不同金属助催化剂、助催化剂用量、TiO2类型、醇类、光波长和可重复使用性对呋喃加氢反应的影响。在此基础上，讨论了TiO2与助催化剂的作用及反应过程。
The use of metal co-catalysts broadens the application of photocatalytic reduction without the use of dihydrogen (H2) gas. We examined photocatalytic hydrogenation of furan, a representative heterocyclic compound and a compound derived from biomass, in alcoholic suspensions of metal-loaded titanium(iv) oxide (TiO2) under a H2-free condition and we found that furan was almost quantitatively hydrogenated to tetrahydrofuran with a high apparent quantum efficiency of 37% at 360 nm when palladium was used as a co-catalyst. Effects of different metal co-catalysts, different amounts of the co-catalyst, the type of TiO2, the type of alcohol, light wavelength and reusability for furan hydrogenation were investigated. Based on the results, the functions of TiO2 and the co-catalyst and the reaction process are discussed.